[求助]L2001/10-1-21

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21.A patient complained of feeling constantly fatigued. It was determined that the patient averaged only four to six hours of sleep per night, and this was determined to contribute to the patient’s condition. However, the patient was not advised to sleep more.

Which one of the following, if true, most helps to resolve the apparent discrepancy in the information above?

(A) The shorter one’s sleep time, the easier it is to awaken from sleeping.

(B) The first two hours of sleep do the most to alleviate fatigue.

(C) Some people require less sleep than the eight hours required by the average person.

(D) Most people who suffer from nightmares experience them in the last hour of sleep before waking.

(E) Worry about satisfying the need for sufficient sleep can make it more difficult to sleep.

Answer is E; Why A is not right? 是不是我的阅读出问题了？

病人累是因为少睡觉，但是却没被建议多睡觉；E说少睡觉是因为担心睡眠不足引起。可是A为什么不对？